InvocationTargetException when running javafx 11 program












0















I got my code to run when I copied and pasted my code into another javafx program that I had created a few weeks ago, but for some reason, whenever I create new javafx programs, I cannot get them to run and get these errors:



Exception in Application start method

java.lang.reflect.InvocationTargetException

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)

Caused by: java.lang.RuntimeException: Exception in Application start method

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)

    at java.base/java.lang.Thread.run(Thread.java:834)

Caused by: java.lang.IllegalAccessError: superclass access check failed: class com.sun.javafx.scene.control.ControlHelper (in unnamed module @0xb69df6e) cannot access class com.sun.javafx.scene.layout.RegionHelper (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.scene.layout to unnamed module @0xb69df6e

    at java.base/java.lang.ClassLoader.defineClass1(Native Method)

    at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)

    at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)

    at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:802)

    at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:700)

    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:623)

    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)

    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)

    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)

    at javafx.scene.control.Control.<clinit>(Control.java:86)

    at Homework4.Homework4.start(Homework4.java:24)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)

    at java.base/java.security.AccessController.doPrivileged(Native Method)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)

    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)

    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)

    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)

    ... 1 more

Exception running application Homework4.Homework4


I think that something is wrong with my JDK11 / JavaFX11 that does not allow me to create any more JavaFX projects because something is making each new project have this compile error. I think the error is due to the java.lang.IllegalAccessError but I have no idea how to fix it.



Here is my code for reference:



package Homework4;



import javafx.application.Application;

import javafx.event.ActionEvent;

import javafx.geometry.Insets;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.control.TextField;

import javafx.scene.layout.HBox;

import javafx.scene.layout.VBox;

import javafx.stage.Stage;





public class Homework4 extends Application {



    private TextField firstNum;

    private TextField secondNum;

    private Button plus;

    private Button equals;

    private TextField result;



    @Override

    public void start(Stage stage) {

        firstNum = new TextField();

        firstNum.setMaxWidth(100);

        firstNum.setOnAction(event -> handleEquals(event));



        secondNum = new TextField();

        secondNum.setMaxWidth(100);

        secondNum.setOnAction(event -> handleEquals(event));



        plus = new Button("+");

        plus.setOnAction(event -> handleEquals(event));



        equals = new Button("=");

        equals.setOnAction(event -> handleEquals(event));



        result = new TextField();

        result.setEditable(false);



        HBox innerPane = new HBox();

        innerPane.setSpacing(10);

        innerPane.setPadding(new Insets(10, 10, 10, 10));

        innerPane.getChildren().addAll(firstNum, plus, secondNum, equals);



        VBox pane = new VBox();

        pane.setPadding(new Insets(10, 10, 10, 10));

        pane.getChildren().addAll(innerPane, result);



        stage.setScene(new Scene(pane));

        stage.setTitle("Welcome to Calculator 3000!");

        stage.show();



    }



    private void handleEquals(ActionEvent event){

        if(!(firstNum.getText().equals("") || secondNum.getText().equals(""))){

            result.setText(firstNum.getText() + secondNum.getText());

        }

    }



    public static void main(String args) {

        launch(args);

    }



}


I am currently using the most recently updated IntelliJ Idea to code.



Side note, I am currently a Freshman in college just starting to create javafx projects, so any help/suggestions are welcome!



I tried to look at this thread for help: InvocationTargetException when running a javafx program



Unfortunately I do not have the coding knowledge to understand the suggestions that people posted in this thread.






java intellij-idea javafx







share|improve this question























  • Did you implement a Controller Class and an FXML File?

    – M.Dan
    Jan 3 at 0:33











  • The IllegalAccessError indicates the javafx.graphics module is on the modulepath but the javafx.controls module ended up on the classpath. Make sure the javafx.controls module is on the modulepath instead. Take a loot at this article.

    – Slaw
    Jan 3 at 1:31
















0















I got my code to run when I copied and pasted my code into another javafx program that I had created a few weeks ago, but for some reason, whenever I create new javafx programs, I cannot get them to run and get these errors:



Exception in Application start method

java.lang.reflect.InvocationTargetException

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)

Caused by: java.lang.RuntimeException: Exception in Application start method

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)

    at java.base/java.lang.Thread.run(Thread.java:834)

Caused by: java.lang.IllegalAccessError: superclass access check failed: class com.sun.javafx.scene.control.ControlHelper (in unnamed module @0xb69df6e) cannot access class com.sun.javafx.scene.layout.RegionHelper (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.scene.layout to unnamed module @0xb69df6e

    at java.base/java.lang.ClassLoader.defineClass1(Native Method)

    at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)

    at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)

    at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:802)

    at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:700)

    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:623)

    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)

    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)

    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)

    at javafx.scene.control.Control.<clinit>(Control.java:86)

    at Homework4.Homework4.start(Homework4.java:24)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)

    at java.base/java.security.AccessController.doPrivileged(Native Method)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)

    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)

    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)

    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)

    ... 1 more

Exception running application Homework4.Homework4


I think that something is wrong with my JDK11 / JavaFX11 that does not allow me to create any more JavaFX projects because something is making each new project have this compile error. I think the error is due to the java.lang.IllegalAccessError but I have no idea how to fix it.



Here is my code for reference:



package Homework4;



import javafx.application.Application;

import javafx.event.ActionEvent;

import javafx.geometry.Insets;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.control.TextField;

import javafx.scene.layout.HBox;

import javafx.scene.layout.VBox;

import javafx.stage.Stage;





public class Homework4 extends Application {



    private TextField firstNum;

    private TextField secondNum;

    private Button plus;

    private Button equals;

    private TextField result;



    @Override

    public void start(Stage stage) {

        firstNum = new TextField();

        firstNum.setMaxWidth(100);

        firstNum.setOnAction(event -> handleEquals(event));



        secondNum = new TextField();

        secondNum.setMaxWidth(100);

        secondNum.setOnAction(event -> handleEquals(event));



        plus = new Button("+");

        plus.setOnAction(event -> handleEquals(event));



        equals = new Button("=");

        equals.setOnAction(event -> handleEquals(event));



        result = new TextField();

        result.setEditable(false);



        HBox innerPane = new HBox();

        innerPane.setSpacing(10);

        innerPane.setPadding(new Insets(10, 10, 10, 10));

        innerPane.getChildren().addAll(firstNum, plus, secondNum, equals);



        VBox pane = new VBox();

        pane.setPadding(new Insets(10, 10, 10, 10));

        pane.getChildren().addAll(innerPane, result);



        stage.setScene(new Scene(pane));

        stage.setTitle("Welcome to Calculator 3000!");

        stage.show();



    }



    private void handleEquals(ActionEvent event){

        if(!(firstNum.getText().equals("") || secondNum.getText().equals(""))){

            result.setText(firstNum.getText() + secondNum.getText());

        }

    }



    public static void main(String args) {

        launch(args);

    }



}


I am currently using the most recently updated IntelliJ Idea to code.



Side note, I am currently a Freshman in college just starting to create javafx projects, so any help/suggestions are welcome!



I tried to look at this thread for help: InvocationTargetException when running a javafx program



Unfortunately I do not have the coding knowledge to understand the suggestions that people posted in this thread.






java intellij-idea javafx







share|improve this question























  • Did you implement a Controller Class and an FXML File?

    – M.Dan
    Jan 3 at 0:33











  • The IllegalAccessError indicates the javafx.graphics module is on the modulepath but the javafx.controls module ended up on the classpath. Make sure the javafx.controls module is on the modulepath instead. Take a loot at this article.

    – Slaw
    Jan 3 at 1:31














0












0








0








I got my code to run when I copied and pasted my code into another javafx program that I had created a few weeks ago, but for some reason, whenever I create new javafx programs, I cannot get them to run and get these errors:



Exception in Application start method

java.lang.reflect.InvocationTargetException

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)

Caused by: java.lang.RuntimeException: Exception in Application start method

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)

    at java.base/java.lang.Thread.run(Thread.java:834)

Caused by: java.lang.IllegalAccessError: superclass access check failed: class com.sun.javafx.scene.control.ControlHelper (in unnamed module @0xb69df6e) cannot access class com.sun.javafx.scene.layout.RegionHelper (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.scene.layout to unnamed module @0xb69df6e

    at java.base/java.lang.ClassLoader.defineClass1(Native Method)

    at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)

    at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)

    at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:802)

    at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:700)

    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:623)

    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)

    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)

    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)

    at javafx.scene.control.Control.<clinit>(Control.java:86)

    at Homework4.Homework4.start(Homework4.java:24)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)

    at java.base/java.security.AccessController.doPrivileged(Native Method)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)

    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)

    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)

    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)

    ... 1 more

Exception running application Homework4.Homework4


I think that something is wrong with my JDK11 / JavaFX11 that does not allow me to create any more JavaFX projects because something is making each new project have this compile error. I think the error is due to the java.lang.IllegalAccessError but I have no idea how to fix it.



Here is my code for reference:



package Homework4;



import javafx.application.Application;

import javafx.event.ActionEvent;

import javafx.geometry.Insets;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.control.TextField;

import javafx.scene.layout.HBox;

import javafx.scene.layout.VBox;

import javafx.stage.Stage;





public class Homework4 extends Application {



    private TextField firstNum;

    private TextField secondNum;

    private Button plus;

    private Button equals;

    private TextField result;



    @Override

    public void start(Stage stage) {

        firstNum = new TextField();

        firstNum.setMaxWidth(100);

        firstNum.setOnAction(event -> handleEquals(event));



        secondNum = new TextField();

        secondNum.setMaxWidth(100);

        secondNum.setOnAction(event -> handleEquals(event));



        plus = new Button("+");

        plus.setOnAction(event -> handleEquals(event));



        equals = new Button("=");

        equals.setOnAction(event -> handleEquals(event));



        result = new TextField();

        result.setEditable(false);



        HBox innerPane = new HBox();

        innerPane.setSpacing(10);

        innerPane.setPadding(new Insets(10, 10, 10, 10));

        innerPane.getChildren().addAll(firstNum, plus, secondNum, equals);



        VBox pane = new VBox();

        pane.setPadding(new Insets(10, 10, 10, 10));

        pane.getChildren().addAll(innerPane, result);



        stage.setScene(new Scene(pane));

        stage.setTitle("Welcome to Calculator 3000!");

        stage.show();



    }



    private void handleEquals(ActionEvent event){

        if(!(firstNum.getText().equals("") || secondNum.getText().equals(""))){

            result.setText(firstNum.getText() + secondNum.getText());

        }

    }



    public static void main(String args) {

        launch(args);

    }



}


I am currently using the most recently updated IntelliJ Idea to code.



Side note, I am currently a Freshman in college just starting to create javafx projects, so any help/suggestions are welcome!



I tried to look at this thread for help: InvocationTargetException when running a javafx program



Unfortunately I do not have the coding knowledge to understand the suggestions that people posted in this thread.






java intellij-idea javafx







share|improve this question














I got my code to run when I copied and pasted my code into another javafx program that I had created a few weeks ago, but for some reason, whenever I create new javafx programs, I cannot get them to run and get these errors:



Exception in Application start method

java.lang.reflect.InvocationTargetException

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)

Caused by: java.lang.RuntimeException: Exception in Application start method

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)

    at java.base/java.lang.Thread.run(Thread.java:834)

Caused by: java.lang.IllegalAccessError: superclass access check failed: class com.sun.javafx.scene.control.ControlHelper (in unnamed module @0xb69df6e) cannot access class com.sun.javafx.scene.layout.RegionHelper (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.scene.layout to unnamed module @0xb69df6e

    at java.base/java.lang.ClassLoader.defineClass1(Native Method)

    at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)

    at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)

    at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:802)

    at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:700)

    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:623)

    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)

    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)

    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)

    at javafx.scene.control.Control.<clinit>(Control.java:86)

    at Homework4.Homework4.start(Homework4.java:24)

    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)

    at java.base/java.security.AccessController.doPrivileged(Native Method)

    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)

    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)

    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)

    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)

    ... 1 more

Exception running application Homework4.Homework4


I think that something is wrong with my JDK11 / JavaFX11 that does not allow me to create any more JavaFX projects because something is making each new project have this compile error. I think the error is due to the java.lang.IllegalAccessError but I have no idea how to fix it.



Here is my code for reference:



package Homework4;



import javafx.application.Application;

import javafx.event.ActionEvent;

import javafx.geometry.Insets;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.control.TextField;

import javafx.scene.layout.HBox;

import javafx.scene.layout.VBox;

import javafx.stage.Stage;





public class Homework4 extends Application {



    private TextField firstNum;

    private TextField secondNum;

    private Button plus;

    private Button equals;

    private TextField result;



    @Override

    public void start(Stage stage) {

        firstNum = new TextField();

        firstNum.setMaxWidth(100);

        firstNum.setOnAction(event -> handleEquals(event));



        secondNum = new TextField();

        secondNum.setMaxWidth(100);

        secondNum.setOnAction(event -> handleEquals(event));



        plus = new Button("+");

        plus.setOnAction(event -> handleEquals(event));



        equals = new Button("=");

        equals.setOnAction(event -> handleEquals(event));



        result = new TextField();

        result.setEditable(false);



        HBox innerPane = new HBox();

        innerPane.setSpacing(10);

        innerPane.setPadding(new Insets(10, 10, 10, 10));

        innerPane.getChildren().addAll(firstNum, plus, secondNum, equals);



        VBox pane = new VBox();

        pane.setPadding(new Insets(10, 10, 10, 10));

        pane.getChildren().addAll(innerPane, result);



        stage.setScene(new Scene(pane));

        stage.setTitle("Welcome to Calculator 3000!");

        stage.show();



    }



    private void handleEquals(ActionEvent event){

        if(!(firstNum.getText().equals("") || secondNum.getText().equals(""))){

            result.setText(firstNum.getText() + secondNum.getText());

        }

    }



    public static void main(String args) {

        launch(args);

    }



}


I am currently using the most recently updated IntelliJ Idea to code.



Side note, I am currently a Freshman in college just starting to create javafx projects, so any help/suggestions are welcome!



I tried to look at this thread for help: InvocationTargetException when running a javafx program



Unfortunately I do not have the coding knowledge to understand the suggestions that people posted in this thread.






java intellij-idea javafx




java intellij-idea javafx






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 3 at 0:19









Kyle RodriguesKyle Rodrigues

11




11













  • Did you implement a Controller Class and an FXML File?

    – M.Dan
    Jan 3 at 0:33











  • The IllegalAccessError indicates the javafx.graphics module is on the modulepath but the javafx.controls module ended up on the classpath. Make sure the javafx.controls module is on the modulepath instead. Take a loot at this article.

    – Slaw
    Jan 3 at 1:31



















  • Did you implement a Controller Class and an FXML File?

    – M.Dan
    Jan 3 at 0:33











  • The IllegalAccessError indicates the javafx.graphics module is on the modulepath but the javafx.controls module ended up on the classpath. Make sure the javafx.controls module is on the modulepath instead. Take a loot at this article.

    – Slaw
    Jan 3 at 1:31

















Did you implement a Controller Class and an FXML File?

– M.Dan
Jan 3 at 0:33





Did you implement a Controller Class and an FXML File?

– M.Dan
Jan 3 at 0:33













The IllegalAccessError indicates the javafx.graphics module is on the modulepath but the javafx.controls module ended up on the classpath. Make sure the javafx.controls module is on the modulepath instead. Take a loot at this article.

– Slaw
Jan 3 at 1:31





The IllegalAccessError indicates the javafx.graphics module is on the modulepath but the javafx.controls module ended up on the classpath. Make sure the javafx.controls module is on the modulepath instead. Take a loot at this article.

– Slaw
Jan 3 at 1:31












0






active

oldest

votes












Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54014863%2finvocationtargetexception-when-running-javafx-11-program%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid …



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54014863%2finvocationtargetexception-when-running-javafx-11-program%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

MongoDB - Not Authorized To Execute Command

Image
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 0 I have successfully enabled authorization on MongoDB and I have created an account on the admin database and then I created an account for my database called test. The following connection string to connect to my test database works successfully: mongo --host 192.168.17.52 --port 27017 -u user1 -p password --authenticationDatabase test Only problem I have now is, I cannot execute commands such as: show dbs. I get the following error when I try to do so: "errmsg" : "not authorized on admin to execute command { listDatabases: 1.0, lsid: { id: UUID("a1d5bc0d-bc58-485e-b232-270758a89455") }, $db: "admin...
Read more

Npm cannot find a required file even through it is in the searched directory

Image
up vote 0 down vote favorite I got that error: users-Air:pdfuploader user$ npm run start client@0.1.0 start /Users/user/Documents/pdfuploader react-scripts start Could not find a required file. Name: index.html Searched in: /Users/user/Documents/pdfuploader/public npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! client@0.1.0 start: `react-scripts start` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the client@0.1.0 start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above. npm ERR! A complete log of this run can be found in: npm ERR! /Users/user/.npm/_logs/2018-11-19T10_19_14_555Z-debug.log users-Air:pdfuploader user$ And the file is in /Users/user/Documents/pdfuploader/public as you can see in my github repository: https://github.c...
Read more

in spring boot 2.1 many test slices are not allowed anymore due to multiple @BootstrapWith

Image
1 I tried to upgrade a yummy sandwich made of two test slices (@JsonTest and @JdbcTest in my case, crunchy test code in between) adding spring boot 2.1 flavour to it. But it seems it was not much of a success. I cannot annotate my tests with many @...Test since they are now each bringing their own XxxTestContextBootstrapper. It used to work when they all used same SpringBootTestContextBootstrapper. @RunWith(SpringRunner.class) @JdbcTest @JsonTest public class Test { @Test public void test() { System.out.printn("Hello, World !"); } } The error I get from BootstrapUtils is illegalStateException : Configuration error: found multiple declarations of @BootstrapWith for test class I understand I might be doing something wrong here but is there an easy way I could load both Json and Jdbc contex...
Read more